SEC Insider Transactions from Whalen Amanda.

Last updated: 2026-03-16 13:01 UTC | Total transactions: 100

Amanda Whalen, CFO of Klaviyo Inc. ($KVYO), made 20 open market sales of company stock over the past year, totaling $5.2 million. Her latest sale occurred on February 13, 2026. These transactions rank her 1,876th out of 11,678 insiders by sale value, trailing the average of $8.6 million across 6.4 sales per insider. Whalen recorded no open market purchases in this period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 12, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 5077 $19.34 412,425.0000 290,896,895 1.22% 0.00%
March 12, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 8923 $19.72 417,502.0000 290,896,895 2.09% 0.00%
Feb. 13, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 9281 $19.01 446,938.0000 290,896,895 2.03% 0.00%
Feb. 13, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 14000 $0.00 456,219.0000 290,896,895 3.17% 0.00%
Feb. 15, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 29513 $0.00 301,405.0000 290,896,895 8.92% 0.01%
Feb. 13, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 14000 $0.00 330,918.0000 290,896,895 4.06% 0.00%
Feb. 15, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 45307 $18.60 426,425.0000 290,896,895 9.60% 0.02%
Feb. 15, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 29513 $0.00 471,732.0000 290,896,895 6.67% 0.01%
Feb. 13, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 4719 $18.63 442,219.0000 290,896,895 1.06% 0.00%
Jan. 15, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 4045 $0.00 344,918.0000 290,896,895 1.16% 0.00%
Jan. 15, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 4045 $0.00 456,219.0000 290,896,895 0.89% 0.00%
Jan. 15, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 7826 $26.08 448,393.0000 290,896,895 1.72% 0.00%
Jan. 15, 2026 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 6174 $25.52 442,219.0000 290,896,895 1.38% 0.00%
Dec. 18, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 460 $30.59 452,174.0000 300,828,017 0.10% 0.00%
Dec. 18, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 13540 $31.41 452,634.0000 300,828,017 2.90% 0.00%
Nov. 14, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 14700 $28.61 482,019.0000 300,828,017 2.96% 0.00%
Nov. 14, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 300 $27.89 481,719.0000 300,828,017 0.06% 0.00%
Nov. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 29513 $0.00 511,232.0000 300,828,017 6.13% 0.01%
Nov. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 45058 $28.61 466,174.0000 300,828,017 8.81% 0.01%
Nov. 14, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 15000 $0.00 378,476.0000 300,828,017 3.81% 0.00%
Nov. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 29513 $0.00 348,963.0000 300,828,017 7.80% 0.01%
Nov. 14, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 15000 $0.00 496,719.0000 300,828,017 3.11% 0.00%
Oct. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 9808 $25.33 486,911.0000 300,828,017 1.97% 0.00%
Oct. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 15000 $0.00 393,476.0000 300,828,017 3.67% 0.00%
Oct. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 5192 $24.45 481,719.0000 300,828,017 1.07% 0.00%
Oct. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 15000 $0.00 496,719.0000 300,828,017 3.11% 0.00%
Sept. 12, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 11204 $0.00 496,719.0000 266,336,826 2.31% 0.00%
Sept. 12, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 11204 $0.00 408,476.0000 266,336,826 2.67% 0.00%
Sept. 12, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 15000 $31.50 481,719.0000 266,336,826 3.02% 0.01%
Aug. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 46829 $31.43 500,515.0000 266,336,826 8.56% 0.02%
Aug. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 29513 $0.00 419,680.0000 266,336,826 6.57% 0.01%
Aug. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 15000 $31.32 485,515.0000 266,336,826 3.00% 0.01%
Aug. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 29513 $0.00 547,344.0000 266,336,826 5.70% 0.01%
July 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 15000 $0.00 449,193.0000 266,336,826 3.23% 0.01%
July 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 200 $31.32 517,831.0000 266,336,826 0.04% 0.00%
July 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 14800 $31.66 518,031.0000 266,336,826 2.78% 0.01%
July 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 15000 $0.00 532,831.0000 266,336,826 2.90% 0.01%
June 13, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 11204 $0.00 464,193.0000 266,336,826 2.36% 0.00%
June 13, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 11204 $0.00 532,831.0000 266,336,826 2.15% 0.00%
June 13, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 15000 $33.47 517,831.0000 266,336,826 2.82% 0.01%
May 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 46829 $34.90 536,627.0000 266,336,826 8.03% 0.02%
May 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 29513 $0.00 583,456.0000 266,336,826 5.33% 0.01%
May 16, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 15000 $34.98 521,627.0000 266,336,826 2.80% 0.01%
May 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 29513 $0.00 475,397.0000 266,336,826 5.85% 0.01%
April 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 3400 $26.20 553,943.0000 266,336,826 0.61% 0.00%
April 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 11204 $0.00 568,943.0000 266,336,826 2.01% 0.00%
April 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 11600 $26.85 557,343.0000 266,336,826 2.04% 0.00%
April 11, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 11204 $0.00 504,910.0000 266,336,826 2.17% 0.00%
March 14, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 25 $32.92 349,623.0000 266,336,826 0.01% 0.00%
March 14, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 14975 $33.54 349,648.0000 266,336,826 4.11% 0.01%
March 17, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer A Series A Common Stock 208116 $0.00 557,739.0000 266,336,826 59.53% 0.08%
Feb. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 31141 $47.00 364,623.0000 266,336,826 7.87% 0.01%
Feb. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 18944 $0.00 395,764.0000 266,336,826 5.03% 0.01%
Feb. 15, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 18944 $0.00 516,114.0000 266,336,826 3.54% 0.01%
Feb. 3, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 3516 $45.00 378,520.0000 266,336,826 0.92% 0.00%
Feb. 3, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 9784 $46.39 382,036.0000 266,336,826 2.50% 0.00%
Feb. 3, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 1700 $44.54 376,820.0000 266,336,826 0.45% 0.00%
Jan. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 3541 $38.68 391,820.0000 266,336,826 0.90% 0.00%
Jan. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 15000 $0.00 406,820.0000 266,336,826 3.83% 0.01%
Jan. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 11459 $39.34 395,361.0000 266,336,826 2.82% 0.00%
Jan. 10, 2025 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 15000 $0.00 535,058.0000 266,336,826 2.73% 0.01%
Dec. 13, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 15000 $39.39 391,820.0000 267,854,769 3.69% 0.01%
Dec. 13, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 11204 $0.00 406,820.0000 267,854,769 2.83% 0.00%
Dec. 13, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 11204 $0.00 550,058.0000 267,854,769 2.00% 0.00%
Dec. 6, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 23950 $0.00 562,312.0000 267,854,769 4.09% 0.01%
Dec. 9, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 1050 $0.00 396,666.0000 267,854,769 0.27% 0.00%
Dec. 6, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 23950 $40.04 395,616.0000 267,854,769 5.71% 0.01%
Dec. 6, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 23950 $0.00 419,566.0000 267,854,769 6.05% 0.01%
Dec. 9, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 1050 $0.00 561,262.0000 267,854,769 0.19% 0.00%
Dec. 9, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 1050 $40.07 395,616.0000 267,854,769 0.26% 0.00%
Nov. 18, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 15000 $34.56 395,616.0000 267,854,769 3.65% 0.01%
Nov. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 18856 $0.00 586,262.0000 267,854,769 3.12% 0.01%
Nov. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 31053 $35.16 410,616.0000 267,854,769 7.03% 0.01%
Nov. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 18856 $0.00 441,669.0000 267,854,769 4.46% 0.01%
Oct. 4, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 10000 $0.00 605,118.0000 267,854,769 1.63% 0.00%
Oct. 4, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 10000 $35.36 422,813.0000 267,854,769 2.31% 0.00%
Oct. 4, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 10000 $0.00 432,813.0000 267,854,769 2.37% 0.00%
Sept. 6, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 200 $29.39 422,813.0000 242,889,272 0.05% 0.00%
Sept. 6, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 9800 $29.73 423,013.0000 242,889,272 2.26% 0.00%
Sept. 6, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 10000 $0.00 432,813.0000 242,889,272 2.37% 0.00%
Sept. 6, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 10000 $0.00 615,118.0000 242,889,272 1.60% 0.00%
Aug. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 18856 $0.00 625,118.0000 242,889,272 2.93% 0.01%
Aug. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 32036 $31.83 422,813.0000 242,889,272 7.04% 0.01%
Aug. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 18856 $0.00 454,849.0000 242,889,272 4.32% 0.01%
Aug. 9, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 42000 $0.00 643,974.0000 242,889,272 6.12% 0.02%
Aug. 9, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer S Series A Common Stock 60000 $30.23 435,993.0000 242,889,272 12.10% 0.02%
Aug. 9, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 42000 $0.00 495,993.0000 242,889,272 9.25% 0.02%
May 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 18856 $0.00 685,974.0000 242,889,272 2.68% 0.01%
May 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 32036 $24.80 453,993.0000 242,889,272 6.59% 0.01%
May 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 18856 $0.00 486,029.0000 242,889,272 4.04% 0.01%
April 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer A Series A Common Stock 279888 $0.00 467,173.0000 242,889,272 149.45% 0.12%
Feb. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 18856 $0.00 704,830.0000 242,889,272 2.61% 0.01%
Feb. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 25275 $29.71 187,285.0000 242,889,272 11.89% 0.01%
Feb. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 18856 $0.00 212,560.0000 242,889,272 9.73% 0.01%
Feb. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 16208 $0.00 209,912.0000 242,889,272 8.37% 0.01%
Feb. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 20227 $29.71 189,685.0000 242,889,272 9.64% 0.01%
Feb. 15, 2024 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 16208 $0.00 707,478.0000 242,889,272 2.24% 0.01%
Nov. 15, 2023 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series B Common Stock 18856 $0.00 723,686.0000 229,857,206 2.54% 0.01%
Nov. 15, 2023 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer F Series A Common Stock 25152 $28.70 193,704.0000 229,857,206 11.49% 0.01%
Nov. 15, 2023 Klaviyo, Inc. $KVYO Whalen Amanda Chief Financial Officer C Series A Common Stock 18856 $0.00 218,856.0000 229,857,206 9.43% 0.01%